Harman US

Planting Calendar for ZIP 98022

Based on your local frost dates - last spring frost around Apr 18, first fall frost around Oct 31 - here is when to plant 79 common crops near ZIP 98022.

Last spring frost
Apr 18
First fall frost
Oct 31
Hardiness zone
8a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 7 Apr 25 (Transplant out) -
Peppers Feb 21 May 2 (Transplant out) -
Cucumbers Mar 28 Apr 25 (Transplant out) Aug 23
Zucchini Mar 28 Apr 25 (Transplant out) Aug 28
Summer Squash Mar 28 Apr 25 (Transplant out) Aug 26
Winter Squash Mar 28 Apr 25 (Transplant out) -
Pumpkins Mar 28 Apr 25 (Transplant out) -
Green Beans - Apr 18 (Direct sow) Aug 23
Sweet Corn - Apr 25 (Direct sow) -
Melons Mar 28 May 2 (Transplant out) -
Watermelon Mar 28 May 2 (Transplant out) -
Okra - May 2 (Direct sow) -
Eggplant Feb 21 May 2 (Transplant out) -
Lettuce Mar 21 Mar 21 (Transplant out) Aug 28
Spinach - Mar 7 (Direct sow) Sep 2
Kale Mar 7 Mar 28 (Transplant out) Aug 23
Peas - Mar 7 (Direct sow) Aug 18
Carrots - Mar 28 (Direct sow) Aug 8
Beets - Mar 21 (Direct sow) Aug 23
Radishes - Mar 21 (Direct sow) Sep 19
Broccoli Mar 7 Apr 4 (Transplant out) Aug 13
Cauliflower Mar 7 Apr 4 (Transplant out) Aug 8
Cabbage Mar 7 Mar 28 (Transplant out) Aug 8
Onions Feb 7 Mar 21 (Transplant out) -
Potatoes - Apr 4 (Direct sow) -
Swiss Chard Mar 21 Apr 4 (Transplant out) Aug 23
Sweet Potatoes - May 9 (Direct sow) -
Brussels Sprouts Mar 7 Apr 4 (Transplant out) Jul 9
Celery Feb 7 Apr 25 (Transplant out) -
Leeks Feb 7 Apr 4 (Transplant out) Jun 19
Turnips - Apr 4 (Direct sow) Aug 28
Rutabaga - Apr 18 (Direct sow) Jul 14
Parsnips - Apr 4 (Direct sow) Jun 19
Kohlrabi Mar 21 Apr 4 (Transplant out) Aug 23
Collard Greens Mar 7 Apr 4 (Transplant out) Aug 13
Mustard Greens - Apr 4 (Direct sow) Sep 2
Arugula - Apr 4 (Direct sow) Sep 7
Bok Choy Mar 21 Apr 4 (Transplant out) Aug 28
Green Onions - Apr 4 (Direct sow) Aug 18
Tomatillos Mar 7 Apr 25 (Transplant out) -
Fennel Mar 21 Apr 4 (Transplant out) Jul 29
Popcorn Apr 18 May 2 (Transplant out) -
Black-Eyed Peas Apr 18 May 2 (Transplant out) Jul 29
Lima Beans Apr 18 May 2 (Transplant out) -
Edamame Apr 18 May 2 (Transplant out) -
Peanuts Apr 18 May 2 (Transplant out) -
Globe Artichoke Feb 21 Apr 4 (Transplant out) Jul 19
Horseradish Apr 18 Apr 4 (Transplant out) -
Ground Cherries Mar 7 May 2 (Transplant out) -
Radicchio Mar 14 Apr 4 (Transplant out) Aug 8
Endive Mar 14 Apr 4 (Transplant out) Jul 19
Watercress Mar 28 Apr 4 (Transplant out) Aug 18
Sorrel Mar 7 Mar 28 (Transplant out) Aug 18
Sunchokes Apr 18 Apr 4 (Transplant out) -
Malabar Spinach Mar 7 May 2 (Transplant out) -
Amaranth Greens Mar 28 May 2 (Transplant out) Sep 2
Luffa Gourd Mar 7 May 2 (Transplant out) -
New Zealand Spinach Mar 21 May 2 (Transplant out) -
Fava Beans Apr 18 Mar 21 (Transplant out) Jul 24
Chayote Mar 21 May 2 (Transplant out) -
Corn Salad Apr 18 Mar 21 (Transplant out) Aug 18
Bitter Melon Mar 21 May 2 (Transplant out) -
Cardoon Mar 7 Apr 18 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 7 Apr 25 (Transplant out) -
Cilantro - Apr 4 (Direct sow) Aug 28
Parsley Feb 21 May 2 (Transplant out) Aug 3
Dill - Apr 25 (Direct sow) Aug 18
Lemon Balm Mar 7 Apr 18 (Transplant out) -
Borage Apr 18 Apr 18 (Transplant out) Aug 23
Chervil Apr 18 Mar 28 (Transplant out) Aug 23
Lemongrass Feb 21 May 2 (Transplant out) -
Summer Savory Mar 7 Apr 18 (Transplant out) -
Marjoram Mar 7 Apr 25 (Transplant out) -
Lovage Mar 7 Apr 18 (Transplant out) Jul 19
Anise Hyssop Feb 21 Apr 18 (Transplant out) -
Shiso Mar 7 Apr 25 (Transplant out) -
Stevia Feb 21 May 2 (Transplant out) -
Chamomile Mar 7 Apr 4 (Transplant out) Aug 13
Tarragon Apr 18 Apr 18 (Transplant out) -
How to read this calendar

Start seeds indoors is when to sow in trays inside so seedlings are ready to transplant. Plant outside is when to transplant seedlings or direct-sow seed, based on frost tolerance. Fall planting by is the latest date to start a fall crop and still harvest before the first fall frost. Tender crops wait until after the last spring frost; hardy crops can go out earlier.

Computed from NOAA 1991–2020 Climate Normals at Mud Mtn Dam, Wa, 12 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 98022 Local weather →